Abstract

The optimization of parameters of mechanoactivation of powder mixture of Al+CuO for the purpose of realization of the most powerful energy release at chemical interaction of components was performed. Vibration and planetary type of the ball mills were used. The results of mechanoactivation on burning rate were controlled by means of high-speed photography of burning process of samples. Initiation of burning was carried out in the electro spark way with control of a current impulse. The non-stationary mode of propagation of chemical interaction of mixture components was recorded under low level spark. The influence of parameters of mixture porosity and current amplitude of a spark for induction period and the speed of distribution of the reaction front of was defined. Results of research indicate the prevalence of filtration nature of distribution of chemical interaction.

Keywords:Thermite mixtures; Mechanoactivation; Burning rate